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Chinese Journal of Kidney Disease Investigation(Electronic Edition) ›› 2024, Vol. 13 ›› Issue (05): 249-255. doi: 10.3877/cma.j.issn.2095-3216.2024.05.002

• Original Articles • Previous Articles    

Effect of percutaneous transluminal angioplasty prior to arteriovenous fistula creation for small-diameter artery in hemodialysis patients

Chaojiang Su1, Jiali Liu2, Yan Jiang1, Ting Xu3, Liting Liu1, Yan Chen1, Zongyang Liu1,()   

  1. 1.Department of Nephrology, Cancer Hospital Affiliated to Guizhou Medical University, Guiyang 550001, Guizhou Province
    2.Department of Clinical Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province
    3.Department of Clinical Medicine, Guizhou Medical University, Guiyang 550001, Guizhou Province; China
  • Received:2023-11-16 Online:2024-10-28 Published:2024-11-18
  • Contact: Zongyang Liu

Abstract:

Objective

The study aimed to investigate the efficacy of percutaneous transluminal angioplasty (PTA) prior to arteriovenous fistula (AVF) creation for small-diameter artery in hemodialysis patients.

Methods

This study was a single-center prospective cohort study. A total of 108 patients with end-stage renal disease (ESRD) to establish long-term hemodialysis access,whose forearm small artery(radius or ulnar artery) was <1. 5 mm in diameter,were enrolled from the Department of Nephrology,Cancer Hospital Affiliated to Guizhou Medical University from June 1,2021 to June 1,2023. Among them,76 patients underwent AVF creation after PTA (PTA+AVF group),while 32 patients underwent only AVF creation as control (AVF group). All the patients' general information,relevant data during and after PTA,and diameters and blood flow indicators of brachial artery,ulnar artery,radial artery,cephalic vein,and basilic vein,as well fistula maturation indicators after AVF creation. The differences between the two groups were then statistically analyzed.

Results

The radial/ulnar artery diameter and the peak systolic velocity(PSV) immediately after PTA in the PTA+AVF group were higher than those before PTA (t= -10.644,P <0.01; t= -6.386,P <0.001). The radial/ulnar artery diameter and PSV at 1 day after PTA were also higher than those before PTA (t= -10.645,P <0.01; t= -6.388,P <0.00). However,there were no significant differences between the radial/ulnar artery diameter and PSV immediately after PTA and those at 1 day after PTA (t= -0.129,P =0.897; t =0.571,P =0.569). At 4,8,and 12 weeks after AVF creation,the blood flow volume of brachial artery and diameters of cephalic/basilic vein and radial/ulnar artery of the PTA+AVF group were all higher than those of the AVF group (P <0.05). And at 4,8,and 12 weeks after AVF,the fistula maturation rates of the PTA +AVF group were 22.97% (17/74 cases),81.08% (60/74 cases),and 93.24% (69/74 cases),respectively,while those in the AVF group were 6.25% (2/32 cases),33.33% (9/27 cases),and 42.31% (11/26 cases),respectively. In the PTA+AVF group,the fistula maturation rates at 4,8,and 12 weeks after AVF were higher than those in the AVF group (χ2 =4.247,P <0.05; χ2 =20.836,P <0.001; χ2 =31.198,P <0.001).

Conclusion

A good AVF maturation rate could be obtained by AVF creation after PTA for the small-diameter arteries of the hemodialysis patients,which may be one of the strategies to effectively utilize the resources of small-diameter arteries of the patients' forearms.

Key words: Hemodialysis, Small-diameter artery, Percutaneous transluminal angioplasty, Arteriovenous fistula creation

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